#10: Overhead Projectors
Now this obsolete technical legacy really provides quite the vivid recollection of the many days inside a classroom, not learning on Chromebook or chalkboards. Oh no, we were right in between eras, copying notes down from the overhead projector. The teachers actually had to do as much work as the students back then.
provided by diynhacks.com
Instead of writing and re-writing notes on the blackboard, teachers were ecstatic when these projectors allowed them to write notes out once, then re-use them over and over. It was an exciting time in education back then. If only they knew how easy it would eventually get.